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                集合                </h1>
                <p>时间限制：10s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：128MB</p>			</div>
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                                <h3>题目描述</h3><p><div style="margin: 17pt 0cm 16.5pt; line-height: normal" align="center"></div>
<div><span style="font-size: medium"><b>&nbsp;&nbsp; </b>小H在学习&ldquo;集合与图论&rdquo;的时候遇到了一个问题，他思考了很久依然无法很好完成这个问题。于是他只好来求助你了，给出n个点m条边的带权无向图（即每条无向边上都有一个权值），有3个集合A、B、C。一开始无向图中所有点都属于A集合，有如下9种操作：</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">MoveA x：表示将第x个点从所在集合中删除，并加入至A集合。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">MoveB x：表示将第x个点从所在集合中删除，并加入至B集合。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">MoveC x：表示将第x个点从所在集合中删除，并加入至C集合。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">AskAA：询问两个端点都属于A集合的所有边中最小的权值是多少。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">AskAB：询问两个端点分别属于A集合和B集合的所有边中最小的权值是多少。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">AskAC：询问两个端点分别属于A集合和C集合的所有边中最小的权值是多少。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">AskBB：询问两个端点都属于B集合的所有边中最小的权值是多少。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">AskBC：询问两个端点分别属于B集合和C集合的所有边中最小的权值是多少。</span></div>
<div style="text-indent: 23.25pt"><span style="font-size: medium">AskCC：询问两个端点都属于C集合的所有边中最小的权值是多少。</span></div>
<div><span style="font-size: medium">&nbsp;&nbsp; 你能帮助他解决这个问题吗？</span></div></p><hr/><h3>输入格式</h3><p><div>&nbsp;</div>
<div style="line-height: 14pt"><span style="font-size: medium"><b>&nbsp;&nbsp; </b>输入的第1行有两个正整数，分别表示n和m。</span></div>
<div style="line-height: 14pt"><span style="font-size: medium">&nbsp;&nbsp; 在第2行至第m+1行中，每行有三个正整数，分别为u、v、w。表示这条无向边的两个端点分别为u和v(u != v)，且这个边的权值为w(w&lt;=10^9)。</span></div>
<div style="line-height: 14pt"><span style="font-size: medium">&nbsp;&nbsp; 第m+2行有一个正整数q，表示有q个询问。</span></div>
<div style="line-height: 14pt"><span style="font-size: medium">&nbsp;&nbsp; 在第m+3行至第m+q+2行中，每行的输入方式为题目描述里9种操作中的一种。</span></div></p><hr/><h3>输出格式</h3><p><div>&nbsp;</div>
<div><span style="font-size: medium"><b>&nbsp;</b><b>&nbsp;</b>对于所有的Ask操作输出最小的权值，如果不存在则输出&ldquo;No Found!&rdquo;。</span></div></p><hr/><h3>样例输入</h3><pre>4 3
1 2 1 
2 3 2
3 1 3
5
AskAA
AskAB
MoveB 2
AskAA
AskAB
</pre><hr/><h3>样例输出</h3><pre>1
No Found!
3
1
</pre><hr/><h3>提示</h3><p><p>n&lt;=100000,m&lt;=500000,q&lt;=100000。且无向图上任意两个点之间至多能选出3条不相交的路径。</p></p><hr/><h3>题目来源</h3><p>没有写明来源</p>
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